The NIBCO® ductile iron butterfly control valve is designed specifically to meet the rigorous requirements of higher pressure automatic sprinkler systems. The EPDM seat disc provides bubble-tight shutoff at rated pressure. With the internal splined stem/disc drive design there is no need for pins or bolts that may create leak paths or turbulence in the waterway. An extended neck allows for insulation up to 2 inches.
The NIBCO® grooved type butterfly valve is classified as a fire protection control valve that is Underwriters Laboratories listed for bubble-tight shutoff at 350 psi water working pressure. The valve is equipped with internal tamper switches as a standard. Grooved ends are compatible with IPS pipe.
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